Butterfly effect

Hi all,

I recently played one game and it was odd. At the beginning of a Summoners Rift Match, a Butterfly flew up to my screen. What I mean by this is that one of the in-game butterflies suddenly filled the screen.

The best way to picture what I'm saying is: out of nowhere you walk down a park and a butterfly flies to your face. The butterfly is so close it obscures the vision and looks big to your eyes.

Things to note:

1. I did not purposefully want to zoom into a butterfly. And I wasn't lagging because I saw my Sona (who I was playing) moving down bot lane.
2. I was on the right side of the map at the start of the game.
3. The color of the butterfly was orange with a black outline. The butterfly was super pixelated.
4. It only happened for a second so I had no time to screenshot.
5. It happened on early hours of March 10.

I really hope someone can attest to this scenario because I'm not trolling and was in the sane mindset when playing.